Its Conservation, Management and Governance
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Government of India Pune Central Water Commission May 2017 National Water Academy Water – Its Conservation, Management and Governance Developed by: Dr S K Srivastava, Chief Engineer D S Chaskar, Director Sidhartha Mitra, Director Government of India Central Water Commission National Water Academy Preface The natural resources scenario of the country is changing fast both in terms of availability as well as quality. The situation is further aggravated by the looming climate change which is going to alter the paradigm of management of natural resources. Water is critical natural resources and is being affected by increasing population, industrialization, urbanization, pollution, deforestation and above all climate change. We have to fight Water Scarcity by striking a balance between Water Usage and Water Replenishment through sensitizing all the stakeholders. Water is everybody’s business and indeed everybody is professing ways, means and solutions for addressing the issues. There is plethora of ideas, paradigms and philosophies put forth by experts, activities, civil society, media etc. from their own perspective for management of water. This has resulted in incoherent and divergent opinions regarding the current state of sector as well as the required future action to tackle the challenges. In order to have a focused and uniform approach to tackle the challenges in the coming decades, it is very much important that all stakeholders are sensitized about the current scenario, future needs and need for proper scientific and rational approach to mitigate the issues and challenges collectively. The National Water Academy (NWA) conducts training programs covering the whole spectrum of topics pertaining to water resources development and management through its various programs, however, the training material prepared is largely technical in nature. A need had been felt since a long time to develop a comprehensive module covering the important aspects of Water Conservation and Management in India which will be useful for all stakeholders including the Civil Society, Academics, researchers etc. Moreover, a request was also recently received from The Lal Bahadur Shastri National Academy of Administration (LBSNAA) which is India’s premier institution dedicated to training Officers of the country’s highest civil services to evolve a module for use in their training programs. Accordingly, NWA developed a syllabi on “Water Conservation and Management” for LBSNAA, Mussoorie which was very much appreciated. Take a cue from this, NWA thought of coming out with a publication on “Water - its Conservation, Management and Governance” wherein the current scenario of water sector, issues and challenges are discussed and scientific and rational approach to address these issues has been brought out for easy understanding to all stakeholders and to give them the right insight on the subject. The module comprises of four chapters viz. Water Conservation and management in India – its need and important; Traditional Water Conservation in India; Contemporary Practices; Governance Issues in Water Management. Chapter – 1 emphasizes that water resource development is to be seen not merely as a single-sector-end objective, but as a prime mover in achieving larger objectives with multiple linkages. This calls for a well set out multi- disciplinary agenda covering not only technological issues but also issues on social, economic, legal and environmental concerns. Therefore the planning, development and management of water resources is to be taken up in an integrated manner for addressing all the concerns facing the water sector at present. This integration has to be a multi-disciplinary approach which would take care of all the conflicting issues and deliver solutions that would be technically feasible, economically viable, socially acceptable and ecologically & environmentally sound. (i) Chapter– 2 throws light on traditional water conservation techniques which had evolved historically as per site specific conditions (topography) and according to the peculiar climate and geology (soil) prevailing therein. The scale of the structures was mostly localized and community owned serving multiple purposes during those times. These micro/small scale techniques were suited to enhance rural economy. These ecologically safe traditional systems are even now viable and cost-effective measures to rejuvenate India’s depleted water resources in rural areas where bigger interventions are not possible or feasible. Productively combining these structures with modern rainwater-saving techniques, such as percolation tanks, injection wells and subsurface barriers, could rejuvenate the India’s parched areas. Chapter-3 describes the Contemporary Water Conservation techniques including the supply and demand side management. Till now emphasis was more on supply side management with related to development of water resources. to a substantial extent this development objective has been achieved. This development of water resources along with management has led to Green Revolution which made this country self-sufficient in food. This could be achieved through various developmental schemes, management practices and Research & Development activities. Owing to changing scenario of the water, in the recent time the focus now is more on demand side management which stresses on improving water use efficiency of agriculture sector and other sectors as well. The Chapter describes the various contemporary measures like use of Micro Irrigation; Advanced Irrigation Techniques; Application of Information Technology; Canal Automation, Large Scale irrigation etc. The Chapter concludes that in order to have sustainable development, there is urgent need for Integrated Water Resources Management with an objective of promoting coordinated development and management of water, land and related resources in order to maximize economic and social welfare in an equitable manner without compromising the sustainability of vital ecosystems. Chapter-4 describes legal, policy and institutional framework in India for both the surface and ground water; roles and responsibilities of Central, State and Local & District Administration; Current issues in water governance; legislative initiatives by Ministry of Water Resources, River Development & Ganga Rejuvenation and way forward to achieve effective governance. I would like to compliment Shri D S Chaskar, Director and Shri Sidhartha Mitra, Director for their untiring efforts in developing the contents of this publication. It goes without saying that collection and compilation of pertinent information and data for preparing such a useful publication needs hard labour, patience and sincerity and those concerned deserve special mention. I am also thankful to all other core faculty members who have directly or indirectly contributed and helped in preparation of this publication. I would also put on record my special appreciation to Ms. Uma G Sundaram, PA for in-depth literature survey and for providing all necessary stenographic support in bringing this publication in the present form. I am sure this publication shall be of immense use to all stakeholders who are concerned with water resources development and management. Place: Pune Date: Vaisakha 22, Saka 1939 11 May 2017 Dr S K Srivastava Chief Engineer National Water Academy, Pune (ii) CONTENTS Page Preface i CHAPTER 1 WATER CONSERVATION AND MANAGEMENT IN INDIA: ITS NEED AND IMPORTANCE 1.1 OVERVIEW OF WATER RESOURCES OF INDIA 1 1.2 PRESENT STATUS OF WATER AVAILABILITY 2 1.3 WATER SHORTAGE AND SCARCITY 3 1.4 FOOD SECURITY 3 1.5 NEED FOR RESERVOIRS 4 1.6 PROBLEMS OF SURFACE AND GROUND WATER : QUANTITY AND QUALITY 5 1.6.1 Surface Water Scenario 5 1.6.2 Ground Water Scenario 6 1.6.2.1 Ground Water Availability 7 1.6.2.2 Hydro-geological Units and their ground water potential 8 1.6.3.3 Ground Water Utilization 10 1.6.3.4 Stages of Ground Water Development 10 1.6.3.5 Ground Water Assessment 10 1.6.3 Water Quality issues of Surface and Ground Water in India 11 1.7 WATER RESOURCES DEVELOPMENT – PRESENT SCENARIO 13 1.7.1 Creation of Surface Storage 13 1.7.2 Development of Irrigation Sector 13 1.7.3 Domestic Water – Urban and Rural Water Supply 14 1.7.4 Hydropower Development 14 1.7.5 Industrial and other uses 15 1.7.6 Projected Water Demand 16 1.8 ISSUES AND CHALLENGES IN THE WATER RESOURCES DEVELOPMENT AND 17 MANAGEMENT 1.8.1 Spatial and Temporal variation in water availability 17 1.8.2 Declining per capita water availability 17 1.8.3 Rising multi-sectoral water demand for food production, energy generations 17 1.8.4 Reducing trend of budget outlay for irrigation sector 17 1.8.5 Inadequate water distribution 18 1.8.6 Low irrigation efficiency 18 1.8.7 Deteriorating Water Quality 18 1.8.7 Over exploitation of ground water resources 18 1.8.8 Climate Change and Water Resources 18 1.9 STRATEGIES FOR FACING THE CHALLENGES 19 1.9.1 Developmental Activities : Gap between availability and utilization 19 1.9.2 Management Practices to bridge a gap between creation and utilization of facilities 20 1.9.3 Research & Development : to mitigate gap between demand availability 22 1.9.4 Economic Development and Water Resources Management 23 1.10 NEED FOR WATER CONSERVATION AND MANAGEMENT 23 1.11 CONCLUSION 24 (iii) CHAPTER 2 WATER CONSERVATION AND MANAGEMENT IN INDIA:TRADITIONAL WATER CONSERVATION IN INDIA 2.1 INTRODUCTION AND BACKGROUND 25 2.2 TRADITIONAL METHODS OF WATER CONSERVATION AND 25 MANAGEMENT 2.3 CONCLUSION 35 2.4 MODERN DAY EXAMPLES